EarthSky https://validator.w3.org/feed/docs/rss2.html Visible planets and night sky guide for April and May Interstellar comet 3I/ATLAS born in a cold environment May’s full moon is called the Flower Moon Crater the Cup sits upon Hydra the Snake’s back Slow solar wind is oddly fast, says Proba-3 Sun news: M flares persist, CMEs nudge Earth See great pics of Comet R3 PanSTARRS from our community Ancestors of mammals laid eggs, says new fossil evidence A pileus cloud means bad weather is on the way Multiday severe weather outbreak forecast for the Plains Milky Way season is back! See gorgeous pics here The Trifid Nebula highlights Hubble’s 36th anniversary Leo the Lion and its easy to see backward question mark Milky Way’s ‘ultra-faint dwarf galaxies’ help probe early universe Join the worldwide 2026 City Nature Challenge this weekend! How much water on exoplanets does life need? Waves on other planets vary widely, new MIT study suggests Here’s how to see the Lunar X and V at 1st-quarter moon Meteor shower guide 2026: Up next … the Eta Aquariids Lights out for birds during spring migration! Earth images from space: 10 incredible photos of our planet Summer solstice in Mars’ southern hemisphere is April 25 Small ants clean larger ants in a surprising twist of nature Happy Earth Day! Why do we celebrate it on April 22? Black hole Cygnus X-1 has fast, powerful dancing jets See and hear galaxies evolving in new simulations Meet M13, the Great Globular Cluster in Hercules The Lyrid meteor shower peaks tonight. Don’t miss it! Cumulus clouds disappear quickly during a solar eclipse Mars sometimes is bright and sometimes is faint The awesome beauty of the Eagle Nebula New organics on Mars raise questions about life Meteor showers are here! 10 easy tips for watching Simulating how black holes light up the dark Pareidolia is seeing things like faces in random objects Seattle waterspout! What are waterspouts and how do they form? Can we find alien life in groups of similar planets? Asteroid 2024 YR4 won’t hit the moon after all Job Opportunities at EarthSky Will a super El Niño in 2026 bring record high temps? Blood Falls in Antarctica, what makes them red? DESI’s 3D map of the universe is complete! Alpha Centauri, the star system closest to our sun Hidden soil fungi stole bacterial DNA to control the rain Do Newton and Einstein’s laws of gravity hold across the cosmos? See Antlia the Air Pump on April evenings Hydra the Water Snake, the longest constellation New meteor shower from an asteroid being eroded by the sun How to translate UTC to your local time zone Index